Method of pasteurizing liquid food and drink products in glass containers.



J. P. GABANNE. METHOD QP PASTEURIZING LIQU ID FOOD AND DRINK PRODUCTS IN GLASS CONTAINERS.

APPLICATION FILED APR. 8, 1910. RENEWED MAB. 20, 1911.

Patented June '27, 1911.

-J. 1 OABANNE. METHOD OF PASTBURIZING LIQUID FOOD AND DRINK PRODUCTS IN GLASS CONTAINERS.

APPLICATION FILED APR. 8, 1910. RENEWED MAR.20,1911.

2 BHEETS -SHEET 2.

Patented June 27, 19-11.

fza 6' rarer ora ion some :2. enem es, or amateurs, Missourian METHOD or r-asrnunrznve LIQUID roon AND DRINK rn onuors nrenass I CONTAINERS. f

Specification of Letters latent. Patgntgd J 11119 2'2, i

Application filed April 8, 1910, Serial 370. 554,289. Renewed March '20, 1911. Serial No. 615,656.

I To all whom it may concern.

Be it known that I, JOHN P. CABifiNNE, a citizen of the United States, and resident of- St. Louis, Missouri, have invented a certain new and useful Improved Method of nets in Glass Containers, of which the folnal vertical view in mid-section of a device suitable to be employed in practicing my invention. Fig. 2 1s a top plan view of the same. Fig. 3 is an end view of the same. Fig. 4 is a transverse vertical view'in mid section of the same; Fig. 5 is an enlarged sectional detail view of the same, showing the bearings with which the revolving sterilizing receptacle is provided. Fig. 6 is an end plan view of the boxes wherein thefood products are held in their containers.

With reference to the apparatus illustrated in the drawings, my method may be described as follows:

I provide an outer shell 7 provided with journal boxes 88 in the heads 9. In these journal boxes 8 are mounted the trunnions 10 and 11, the trunnion 11 being provided at its outer extremity with the pulley wheel l2. The trunnion's, l0 and 11 are mounted respectively in the heads 13 and 14.- of the revolving'receptacle 15.- The receptacle 15' by means of the pipes 23 provided with a valve 24; The revolvmg receptacle 15 is rectangular in section and is of such dimensions as to receive and hold a predetermined number of rectangular boxes 25, which boxes are provided with perforate sides and bottoms and areopen at their-tops; the boxes 25 being super mposed upon each other in. layers as indicated 1n Fig. 1, the bottoms of the boxes 25 above the lower layer of said Pasteurizing Liquid Food and Drink Prodl packages of .milk or ether The cover 17 being secured in place by any suitable-means, the receptacle 15 is revolved by means of'the pulley-wheel 12. The outer shell-7 is provided with the sectional. hinged} cover 26 whose sections correspond with the sect1ons of the cover-17. "Water being admitted to the shell 7 by meansof the pipe 23, the valve 22 is opened admitting steam tothe water for the purpose of raising the temperature of the water. The desired temperature being thus secured, the receptacle I 15 is revolved rapidly upon the trunnions 10 and 11 by means of the pulley-wheel 12, so that the contents of the boxes 25 shall be uniformlyheated-to a point which will partially pasteurize their contents.

Asmy method relates to the treatment of liquid food and drink products in which it is desirable to maintain the'original flavor and characteristics of the prodnot, I have found that such flavor and characteristics can best be preserved by discontinuous heating; that to say, by a series of beatings andcoolings which will quite as effectually eliminate all bacteria and spore, as well as the maintenance of the product at a high temperature for a considerable length of time. I have found that ency to deteriorate the, product 'in taste, smell and flavor, and my method is devised to overcome that objection. I therefore im merse theglass containers in the heating fluid ata temperature below 100 Fahrenheit, raise the temperature of the fluid to a point between 140 F. and 190 F., hold the temperature of the fluid at that point until the contents of the revolving glass ermtainers have been brought to the same temperature as that of the fluid in which they are immersed, with the effect of partial or fractional pasteurization. tire process the revolution of the containers.

' such continued high temperature has a tend- During the ening the bulk of the active bacteria, and I then reduce the heating fluid to a point below 100 F. and maintain it at its low temperature untll the contents of the glass con- ',taincrs has descended to the some temperaturc. The spore remaining in the food or drink product then becomes active and 1 rcpost the former operation of raising the temperature, first of the heating fluid and then of the contents of the glass containers, as another step in the fractional or partial pasteurization of the food or drink product.

The lowering of the temperature of the heating fluid is accomplished by closing the valve 22 and discharging the contents of the sh ll 7 through the discharge pi pcs 27, which sic opened by means of the valves 28 coutrolled by the levers 30 and 31; L's-opening the valve 291 and discharging c ld Water within the interior of the shell 7 through the pipes 23 to cool the contents of the cs 25. means of providing the receptacle -wiib the sectional cover 1? and providing hell 7. with the sectional cover 26; the s of these covers registering with each other, I am enabled to determine by actual test any given stogc of the pcrfect pastomfication of the food or drink product, the de to which pasteurization has been accompushcd. This d l by the removal one or more oft-hc ooutuincrs and the microscopic,emminrnion of the food drink product. Having once determined by such microscopic testthe number of success' 7c. beatings required for the particular roduct, which number will be determined I the perfect elimination of all of the spore and bacteria rccognizsblc through the micro scope I have established a record which will be follovie'd in subsequent pasteurization or the same food or drink product.

After the glass containers have been originally immersed in the heating fluid at any temperature below 100 F., and above 32 F., the subsequent coolings are made to a temperature between 70 1". and 90 F.

The pipes 23 extend along the length of the interior of the shell 7, as indicated in Fig. *2, and are pcrforated'as indicated the numeral 29; the perforations 29 being of such number and so arranged as to permit the interior of the shell 7 to'bc speedily filled with water to the desired height.

By means of the described method, I provide means whereby commodities, such as milk, may be uniformly sterilized and pasteurized without danger of coagulation or irregular heating; the contents of each of the packages contained in the boxes being agitated during the process of heating and cooling and caused to pass rapidly through the mass of heating fluid contained in the shell 7, thus securing exact uniformity of temperature throughout the mass of the material to be sterilized.

Having thus fully described my invention, What I claim as new and desire to have secured to me by the grant of Letters Patout, is:

The improved method of pastcurizing liquid food and drink products in glass containers, consisting in subjecting the glass containers carrying said product to continuous revolution within a body of heating fluid, in which fluid they are immersed at a temperature below lOOFcFahrenheit, and the temperature of which fluid is alternately raised to a pasteurizing temperature of 140 F. to 190 43),, and again lowered to a, temperutru'e between 76 Bend 90 F. until all spore and bacteria existing in the product have been destroyed.

JOHN P. caniwnn.

Witnesses:

ALFRED A. EICKS, -WAL'IILR C. STEIN. 

